Bead Damage Caused By Tire Changers

WARNING: This page does not describe the selected car, but rather 19 other vehicles, including the 2017 Audi S5, 2017 Audi A5 Quattro, 2016 Audi S5, 2016 Audi A5 Quattro, and 2015 Audi S5. However, it is still accessible from the selected car via links, so may be relevant.

The following mistakes when fitting tires can lead to severe tire damage.

When rolling in the upper bead on the tire changer, the opposing tire bead does not lie completely in its bed.
The mounting head was adjusted incorrectly.
The edge of the fitting roller rolls onto the bead.
The guide rollers are worn or have sharp edges.

Frequently, mounting and run out marks from the guide rollers are identified in the damaged area.

NOTE:

Both tire beads as well as the bead seats must always be coated with fitting paste.

If mounting damage is undetected, there is the danger that the tire will fail later when driving.

THEREFORE!

Never fit a tire without fitting paste.
Do not inflate the bead seating pressure above 3 bar (43.5 psi).
Do not inflate the tire filling pressure above 4 bar (58 psi).
After the tire has been fitted, reduce the air pressure to the specified value.